header {
    display: block;
    margin: 0 auto;
    width: 500px;
    text-align: center;
}
header h1 {
    font-family: Arial;
    font-size: 60px;
    font-weight: bold;
}
header #startBtn {
    display: block;
    margin: 20px auto;

    width: 100px;
    padding: 10px 10px;
    background-color: #8f7a66;
    font-family: Arial;
    color: white;

    border-radius: 10px;
    text-decoration: none;

}
header #restartBtn :hover{
    background-color: #9f8b77;
}
header p {
    font-family: Arial;
    font-size: 20px;
    margin: 20px auto;
}
#container{
    width:460px;
    height:460px;
    padding:20px;

    margin:50px auto;
    background-color:#bbadff;

    border-radius: 10px;
    position: relative;
}
.grid-cell{
    width:100px;
    height:100px;
    border-radius: 6px;
    background-color:#625f5c;
    position: absolute;
}
.number-cell{
    border-radius: 6px;
    font-family: Arial;
    font-weight:bold;
    font-size:30px;
    line-height:100px;
    text-align:center;
    position:absolute;
}
.final {
    z-index: 3;
    display: none;
    top: 35%;
    left: 25%;
    position:absolute;
    width: 300px;
    height: 150px;
    background-color: rgba(45,255,45,0.8);
}
.finalpoint{
    display: inline;
}
#reStart{
    display: block;
    font-size: 30px;
    background-color: rgba(45,255,45,0.8);
    color: #ffffff;

}
#reStart:hover {
    background-color: #fc3206;
    color: #000;
}